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Good relative inexpensive battery maintainers for c4/c5 vettes

I BELONG TO THE "EASTTEXAS CORVETTE ASSOC. OF TYLER,TX.I'VE WORKED ON C4's OVER 25 YR's + & PRESENTLY CUTTING MY TEETH ON C5's.PRESENTLY,3 OF OUR MEMBERS WITH C4's USING THE CEN-TECH 10/2/50 AMP 12V+ BATTERY CHARGER/STARTER IS EXPERIENCING DEAD BATTERIES AFTER ABOUT 4-6 MONTHS.THESE CAR'S ARE CONNECTED TO THIS CHARGER FROM 1-3 Wks AT-A-TIME SET TO THE 2 AMP CHARGE RATING. WOULD IT BE SAFE TO SAY THIS CHARGER IS CAUSING THE DEAD BATTERIES? ALSO DO U HAVE A SUGGESTION FOR A RELATIVE INEXPENSIVE BATTERY MAINTAINER? HELP!!!

Battery Thoughts

First of all only use AC Delco batterys they have proven to be the best! That Harbor Freight charger only floats the battery . It is not a charger. If you start of with parasite draining how can you maintain a 12.50 charge. ( Thats a 100% charge) . If the battery reads 12.25 thats half a charge. When you
buy a new battery watch the date of the battery, they discharge as they age. Now if you have that full charge buy a Brand name maintainer from Napa they have Battery maintainer. Once again you only get what you pay for.

I BELONG TO THE "EASTTEXAS CORVETTE ASSOC. OF TYLER,TX.I'VE WORKED ON C4's OVER 25 YR's + & PRESENTLY CUTTING MY TEETH ON C5's.PRESENTLY,3 OF OUR MEMBERS WITH C4's USING THE CEN-TECH 10/2/50 AMP 12V+ BATTERY CHARGER/STARTER IS EXPERIENCING DEAD BATTERIES AFTER ABOUT 4-6 MONTHS.THESE CAR'S ARE CONNECTED TO THIS CHARGER FROM 1-3 Wks AT-A-TIME SET TO THE 2 AMP CHARGE RATING. WOULD IT BE SAFE TO SAY THIS CHARGER IS CAUSING THE DEAD BATTERIES? ALSO DO U HAVE A SUGGESTION FOR A RELATIVE INEXPENSIVE BATTERY MAINTAINER? HELP!!!

If the charger you are referring to is NOT a float type charger and is indeed constantly throwing 2 amps at your battery, then yes you could damage the battery if left unattended. Never leave a battery charger unattended unless it is a float or maintainer type of charger. Get a quality float/maintainer style charger if you are going to leave it hooked up for days/weeks at a time, buy a brand name unit, you don't want to boil the battery and damage the battery or surrounding areas.